ROTARY DRILL BIT.
    1.
    发明公开
    ROTARY DRILL BIT. 失效
    ROTIERENDER BOHRKOPF。

    公开(公告)号:EP0298114A4

    公开(公告)日:1989-12-12

    申请号:EP88901351

    申请日:1988-01-15

    申请人: WOOD ROY W

    发明人: WOOD ROY W

    摘要: A drill bit (10) for drilling into earth formations comprising a plurality of sections (12, 14, 16) having connection means (58, 60) to connect said sections (12, 14, 16) to form a unitary drill bit (10); means (44, 106, 110) in said plurality of sections for storing and delivering lubricants to the cutting cones (102); and wear bar segments (18, 20, 22) on said plurality of sections (12, 14, 16) to form continuous wear bars about the periphery of said unitary drill bit (10) thus reducing the wear on said unitary drill bit.

    摘要翻译: 一种用于钻进地层的钻头(10),该钻头包括具有连接装置(58,60)的多个部分(12,14,16),以连接所述部分(12,14,16)以形成整体钻头(10 ); 在所述多个部分中的装置(44,106,110),用于存储和输送润滑剂到切削锥体(102); 并且在所述多个部分(12,14,16)上磨损棒段(18,20,22)以在所述一体钻头(10)的周边周围形成连续的磨损棒,从而减少所述一体钻头的磨损。